The really true downside of this box is the lack of (original) english voicing and the original theme music. It makes it somewhat difficult to get "into" the series, and that makes it maybe a bit more for die-hard fans, but I'm sure everyone can enjoy this collection.
There is an english track (for Singaporian television, if I remember correctly) is a big laugh. For whatever reason they used it, I cannot tell. I though it was funny, I laughed my a$$ off ;-) It's a lot of bad voice acting by only one man. I'd stick with the japanese track, but as part of the extra features a nice addition as well as the commentary track on some of the episodes.
Having said the above, it is a great set of completeness. Whatever happened after Season 2 ...well this! I enjoyed it a lot and I hope everyone who buys it will enjoy this box-set too!